Pairing two essential filters, the Vu Filter 40.5mm Sion Circular Polarizer and UV Filter Kit from B&H combines a UV and a circular polarizer filter with a pair of filter wrenches and a microfiber cloth.
Vu Filters 40.5mm Sion Slim Circular Polarizer Filter
The 40.5mm Sion Slim Circular Polarizer Filter from Vu Filters helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarized due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarizing filter arranges, and filters, this directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of this light. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and an increase in the saturation of skies and foliage.
A circular polarizer only differs from a linear polarizer in that it contains a quarter wave plane in addition to the linear polarizing filter. The addition of this quarter wave plane is to circularly polarize the linearly polarized light for the use of auto focus and exposure functions. Due to how the light is broken down and filtered with a linear polarizer, auto focus and exposure accuracy become skewed during use. When the light becomes circularly polarized, it permits the use of these functions.
Sion Slim circular polarizer filters are multi-coated, have approximately a greater than 85% average light transmission, and are constructed from Schott glass with a black rim. Set within aluminum-alloy filter rings that are durable while remaining lightweight, the glass elements provide increased clarity as well as color fidelity, while their black rims further ensure that reflections do not occur along the filter's edge. The Flat Wave Overcoat associated with this Sion Slim circular polarizer filter provides an additional layer over the multi-coatings, resulting in an improved beading effect to repel water for greater cleaning efficiency.
This 40.5mm Sion Slim Circular Polarizer Filter's ring assembly is 3.4mm thick, to help maximize vignetting prevention. It can be rotated in order to adjust the intensity of the polarization effect, and features side knurling to provide a more textured grip for mounting or removing the filter from a lens.
Vu Filters 40.5mm Sion UV Filter
The 40.5mm Sion UV Filter from Vu Filters is a general use, clear filter designed to absorb ultraviolet light and reduce the bluish cast of daylight. Aside from the reduction of unwanted blue casts, no additional coloration or contrast is created, and adjustments to exposure are not required while using this filter. To prevent internal ghosting and reflections, each glass surface is multi-coated. These coatings offer greater protection to the filter substrate, further enhance its ability to limit UV, and help to ensure color fidelity. The Flat Wave Overcoat associated with this Sion UV filter provides an additional layer over the multi-coatings, resulting in an improved beading effect to repel water for greater cleaning efficiency.
Sion UV filters are constructed from Schott glass with a black rim. Set within an aluminum-alloy filter ring that is durable while remaining lightweight, the glass provides increased clarity as well as color fidelity while the black rim further ensures that reflections do not occur along the filter's edge. The filter ring is also weather-sealed, which contributes to this Sion UV filter's ability provide general protection for a lens at all times. Such filters help to reduce dust and moisture from reaching your front lens element and provide additional protection in case of drops or situations where scratching could occur.
Sensei 37-46mm Filter Wrench (Set of 2)
The Sensei 37-46mm Filter Wrench (Set of 2) is a helpful tool for removing jammed or over-tightened filters from your lens. The wide handle ridges and squeeze-type design ensure comfort and grip for ease of use. This wrench is compatible with filters ranging from 37-46mm in diameter.
Sensei Microfiber Lens Cleaning Cloth (Gray)
Safely clean your glass lenses, television screens, computer monitors, binoculars, and more with this gray Microfiber Lens Cleaning Cloth from Sensei. This handy item is also useful for wiping dust or smudges off CDs, DVDs, or Blu-ray discs. The soft microfiber fabric will not scratch glass or other sensitive surfaces, and allows for streak-free cleaning.
One side of the cloth features a covering of textured rubber dots to give you a more secure grip, preventing the cloth from slipping out of your hand. Additionally, the fabric is approximately 18% gray, so it can assist you in setting your camera's white balance. At only 7 x 7.9" in size, the cloth is small and easily packed in a pocket, pouch, or bag for convenient carrying. It's also machine washable in cold water on a gentle cycle for reuse again and again.